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US 8,618,595 B2Granted
Applications of light-emitting nanoparticles
AssigneeMerck Patent GmbH
InventorsBrian A. Korgel, Keith P. Johnston, Katherine Brosh, Paul Thurk
Life of this patent
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Abstract
A method for the production of a robust, chemically stable, crystalline, passivated nanoparticle and composition containing the same, that emit light with high efficiencies and size-tunable and excitation energy tunable color. The methods include the thermal degradation of a precursor molecule in the presence of a capping agent at high temperature and elevated pressure. A particular composition prepared by the methods is a passivated silicon nanoparticle composition displaying discrete optical transitions.
Claims24
A device, comprising:
- a source region and a drain region having a channel disposed between them;
- and
- a gate disposed adjacent to the channel and comprising at least one nanoparticle wherein the at least one nanoparticle comprises a crystalline material selected from the group consisting of Si and Ge, and has an average particle diameter of between about 1 to about 100 angstroms;
- wherein said at least one nanoparticle contains a capping agent, wherein said capping agent has the formula (R)n—X, wherein X is an atom or functional group bound to the surface of the at least one nanoparticle, wherein n is an integer, and wherein each R moiety is independently hydrogen or an alkyl or aryl group having from 1 to 20 carbon atoms.
1 more element
A device, comprising:
- a source region and a drain region having a channel disposed between them which comprises a Group IV nanowire;
- and
- a gate disposed adjacent to the channel;
- wherein the nanowire comprises a crystalline material selected from the group consisting of Si and Ge and has an average diameter of between about 1 to about 100 angstroms, wherein said nanowire contains a capping agent, and wherein said capping agent has the formula (R)n—X, wherein X is an atom or functional group bound to the surface of the nanowire, wherein n is an integer, and wherein each R moiety is independently hydrogen or an alkyl or aryl group having from 1 to 20 carbon atoms.
1 more element
Dependencies are inferred from the claim text.